Improvement in dumping-cars



W. RUBINSUN.

Dumping-Ears.

No. 134,488, Patented D e c.31, 1872.

Witnesses inventor.

WILLIAM ROBINSON, OF BELLEFONTAINE, OHIO, ASSIGNOR TO HIMSELF AND THOMAS MIL'IENBERGER, OF SAME PLACE.-

EMPROVEMENT IN DUi i]PIN(Ei-(W-HRS.

Specification forming part of Letters Patent No. 134EA88, dated Dcceml; er 31, 1872.

To all whom it may concern:-

Be it known that I, WILLIAM ROBINSON, of Bellefontaine, in the county of Logan and State of Ohio, have invented an Improved Dumping-Oar, of which the following is a specification Nature and Objects of the Invention.

chains are coiled upon drums near the extremities of a Windlass-shaft, extending from end to end of the car. The trap-doors are locked by sliding bolts, operated by coming in contact wlth stationary studs on the frame as the box reaches each extremity of its movement. The boxes are locked in their upper or inward position by a bolt operated by a lever.

Description of the Accompanying Drawing.

Figure 1 is a perspective view of my improved car prepared for loading. Fig. 2 is a vertical longitudinal section of the same. Fig. 3 1s a transverse section in two planes, showin g one of the boxes in elevation and the other in section, and representing their dumping position. Fig. 4 is a transverse section in the same planes, showing the boxes closed.

General Description.

The main frame Ais supported on trucks in customary manner. B B are boxes, parting along the longitudinal center of the car and having a lateral sliding movement on curved and inclined ways S S. The boxes arepreferably mounted on wheels T T to cause th to move more freely. O U are trap-doors, forming parts of the bottoms of the boxesand hinged at c c to the outer sides thereof. D D are cords or chains attached to the free ends of the trap-doors O and extending around sheaves E F to drums G G, located near the ends of a shaft or Windlass, H, which extends from end to end over the longitudinal center of the car, and may be rotated by a crank, h. These cords or chains or their equivalent serve to close the traps G, and further to retract the boxes B to their upper position in readiness for loading. I I are sliding bolts, which look the trap-doors O in their closed position. These bolts are retracted by coming in contact with studs J J when the boxes slide outward, thus permitting the trap-doors to fall. K K are studs with which the bolts I come in contact, to re-shut them when the doors have been closed and the boxes are restored to their upper positions. L is a sliding bar, operated by a lever, M, and carrying bolts or pins N N, which catch in lugs or eyes 0 O projecting from the lower and inner corner of each box to hold them together in their elevated position for receiving and carrying the load. To adapt the sliding boxes to move more freely I prefer to have them supported on wheels T T running on inclined ways S.

Operation.

The dumpingcar is well adapted for use in ballasting railways, and I will describe the mode of using it for this particular purpose. It may, however, be applied to various other uses.

To adapt the car to receive a load the boxes are retracted and locked in the position shown in Figs. 1, 2, and 4. Having received its load of gravel or stone it is run to the place at which the ballast is to be applied. The bar Lis then drawn back by its lever M, withdrawing the hooks N from the eyes .0, and permitting the boxes B B to run outward and downward on the ways R R by their own gravity, the curvature of the ways throwing the inner edges of the boxes upward as they slide out. 'At the end of this movement the bolts I strike the studs J and are thus made to release the trapdoors 0, which fall to the positions shown in Fig. 3, so as to discharge the entire contents of the boxes, and at the same time serve as deflectors, by which it isdeposited close to the rails where it is required. The Windlass H is then rotated, closing the trap-doors O and retracting the boxes into position for loading,

the bolts I coming in contact with the studs 2 wanes deflect the material toward the track, substantially as set forth.

2. In combination with the sliding boxes B and trap-doors G, the Windlass H and cords or chains 1), the latter being attached to the trapdoors so as to close them before retracting the boxes, substantially as set forth.

3. The bolts I, operated automatically by contact with projections J K, as described,for the purposes set forth.

WM. ROBINSON.

Witnesses:

OGTAVIUS KNIGHT, WALTER ALLEN. 

